Socialist Party of the Basque Country-Basque Country Left

The Socialist Party of the Basque Country-Basque Country Left (PSE-EE) is a social democratic party in the Basque Country and the Spanish Socialist Workers' Party's local affiliate. The party was founded in 1977 after Spain's transition to democracy, and the PSE-EE was denounced by Basque separatists for "collusion" with the Spanish government and for use of "state terrorism" in the form of the GAL death squads. During the 1990s, some PSE-EE members were arrested for their involvement in vigilante attacks against suspected Basque nationalists. By the early 21st century, it alternated between being in opposition and being the third party, trailing behind the Basque National Party and EH Bildu.